InDesign 2024 for Mac exporting blank files
I am trying to send three different files out to print at an online printer. I exported them as PDFs and all turned out blank. Then I tried to export them as PNG, and same thing.
I have been trying to find references to this problem, and some say that doing the artwork on the master pages might be the issue, but that is not true in this case. Further, one of these files has been exported and printed before with no problem (although I did modify it since then).
Further, there are no linked files; they are all type.
At first I thought it was just a display issue on my end, but the printer confirmed both the PDFs and PNGs were blank.
Any thoughts? Thank you!

